In 1975, in city of Tashkent (Uzbekistan) Leon Petrosov had created the Las Vegas style show called "The Express Revue". This show was succesfully touring in former Soviet Union and Worldwide for 19 years. As the time passed, Leon's kids Angelina, Arsen, Sandra became involved with the show. So afterwords they turned into proffessional singers and show artists. In 1990 Leon & Arsen Petrosov have started their composing career. In 1991 they became the winners of russian top festival "Song of the Year".

A lot of radio and TV programs, such as "Mprning Mail", "50/50", "Morning Star", "Mayak" were playing their songs. When in 1993 they came to USA, they have released three original albums. At the same time they were composers, lyricists, arrangers, sound-engeneers, performers and producers of following projects: "Petrosov Family" (1997), "17 new songs" (1999) and "The Express Band by Leon Petrosov in LA" (2001). These albums became very popular among russian-speaking community. Especially such song as: "Pearl Dreams", "I'm like that", "Where are you", "Mandalina", "Paris", "You are my gold", "Knock the door", "My love", "Girl's dreams", "You know", "Autumn".

At the same time they have released a music-video for the song "You lied to me". In 1999 "The Express Band By Leon Petrosov" was performing at the New-York's top festival "Stars of Russian America". New Leon & Arsen Petrosov are preparing the fourth original album, called "Deja Vu".